/*
 * Licensed to GraphHopper GmbH under one or more contributor
 * license agreements. See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.
 *
 * GraphHopper GmbH licenses this file to you under the Apache License,
 * Version 2.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.graphhopper.jsprit.core.algorithm.ruin.distance;

import com.graphhopper.jsprit.core.problem.job.Job;
import com.graphhopper.jsprit.core.problem.job.Service;
import com.graphhopper.jsprit.core.util.EuclideanDistanceCalculator;

public class EuclideanServiceDistance implements JobDistance {

    public EuclideanServiceDistance() {
        super();
    }

    @Override
    public double getDistance(Job jobI, Job jobJ) {
        double avgCost;
        if (jobI instanceof Service && jobJ instanceof Service) {
            if (jobI.equals(jobJ)) {
                avgCost = 0.0;
            } else {
                Service serviceI = (Service) jobI;
                Service serviceJ = (Service) jobJ;
                if (serviceI.getLocation().getCoordinate() == null || serviceJ.getLocation().getCoordinate() == null) {
                    throw new IllegalStateException("cannot calculate euclidean distance. since service coords are missing");
                }
                avgCost = EuclideanDistanceCalculator.calculateDistance(serviceI.getLocation().getCoordinate(), serviceJ.getLocation().getCoordinate());
            }
        } else {
            throw new UnsupportedOperationException(
                "currently, this class just works with shipments and services.");
        }
        return avgCost;
    }

}
